The platform is already spread across 1 million sites, he said:
"There's over one million unique domain buttons on the Internet
with LinkedIn share buttons," Weiner said.

These shared stories—whether they originated on the New York Times or, yes, Business Insider—then get posted on
individuals' LinkedIn accounts for people they're connected with
to see. If certain articles get enough heat, then it can make it
to LinkedIn Today and get seen by some of the company's 187
million users.

The publications that created the shared stories then get
boatloads of traffic back to their sites.

LinkedIn Today executive editor Dan Roth explained in a previous
interview that "The stories that have a tiny little
bit of fire, we pour gasoline on them ... When people
start sharing your stories or commenting on stories, our
algorithm starts noticing it."